The M109 has a crew of six ... The recoil system is hydropneumatic and the breech block is of the Welin-step thread type. Gun elevation and depression and turret traverse are hydraulic with ...
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Poland's artillery prowess: Why US lags in rangegun by BAE Systems in the M109 howitzer. While the tests showed some successes, the ERCA program was canceled in 2024. The reason was the excessively fast wear of components (barrel or breech ...
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